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ADS1115 Explained: Registers, Modes & I2C Timing

ADS1115 peripheral deep analysis

ruilixin6

Published August 24, 2026

ADS1115 Explained: Registers, Modes & I2C Timing

Project description

【Preliminary Note】The original hardware example in this article was written based on the RP2040. The actual hardware used in this hands-on demonstration features the W55RP20 as the main controller chip. The circuit logic and UF2 flashing operation principles are universally applicable, with only the main controller model differing. The original chip model mentioned in the circuit descriptions below is provided for reference purposes only. ADS1115 Chip Introduction ADS1115 is a high‑precision, low‑power 16‑bit Analog‑to‑Digital Converter (ADC) produced by Texas Instruments (TI). It integrates…

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